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    <script>
      // 编写一个函数，计算两个数字的和、积 要求：使用传参的形式 function test(a,b,type){}
      var fn = function(a,b,tybe){
        var c =a+b;
        var d =a*b;
        console.log("和为"+c);
        console.log("积为"+d);
      }
      fn(2,3);



    </script>
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